Cisco 4221 ISR Router - ISR4221/K9 Switch 1D spanning tree protocols are

1D spanning tree protocols are standard on the Cisco EtherSwitch HWIC

professional services

making voice paging and notification announcements easier to understand

The CP-8831-K9 is a simple

Connect two units or add optional expansion microphones to increase room coverage and voice pickup

Cisco 4221 ISR Router - ISR4221/K9 Switch 1D spanning tree protocols areNew and Refurbished 4221 ISR with 3 onboard GE, 2 NIM slots, 1 ISC slot, 1 SM slot, 4 GB flash memory default, 4 GB DRAM default with Warranty The Cisco 4000 Series Integrated Services Routers (ISR) revolutionize WAN communications in the enterprise branch. With new levels of built in intelligent network capabilities and convergence, the routers specifically address the growing need for application aware networking in distributed enterprise sites.